The Extech SDL100 is a pH/ORP meter featuring an SD Card real-time Datalogger. It displays pH readings from 0 to 14.00 and ORP readings up to +1999mV, with automatic temperature compensation via a supplied probe. Data can be stored on an SD card or streamed to a PC via an RS232 port.
The manual details how to power the device using six AA batteries or an optional AC adaptor, select between pH and ORP modes, and perform measurements. It also explains the use of the MAX-MIN function, display backlight, and data hold features.
| pH Measurement Range | 0.00 to 14.00 |
|---|---|
| ORP Measurement Range | +1999 mV |
| Power Source | Six (6) 1.5VDC 'AA' batteries or optional AC adaptor |
| Auto Power OFF Time | 5 minutes |
| Datalogger Sampling Rate | 0 seconds to 8 hours, 59 minutes, and 59 seconds |
Press and hold the power button for at least 1.5 seconds to power ON, and hold it for 1.5 seconds to power OFF.
Press and hold the FUNCTION button for at least 1.5 seconds until the display toggles between pH and ORP modes.
Press the MAX-MIN button momentarily to start recording, then press it again to view MAX or MIN readings.